Method and apparatus for controlling a tractor/implement combination
US6547012B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2001 |
| Grant date | Apr 15, 2003 |
| Priority date | — |
| Expiry date | Jun 20, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19274
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A tractor/implement combination is controlled through the use of real-time data on the true draft force generated by engagement of an implement with the ground. A method of controlling a tractor/implement combination includes obtaining and storing calibration data on the torque generated at the tractor flywheel, while the implement is disengaged from the ground, including such data the rolling resistance and frictional/parasitic losses between the flywheel and driven wheel axle of the tractor. During subsequent operation of the tractor/implement combination, the calibration data is subtracted from instantaneous data to generate a signal indicative of the implement draft force. The draft force signal may be factored to take account of the tractor power train ratio and the rolling radius of the tractor tires. The method allows generation of accurate draft force data, regardless of the nature and mounting location of the implement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.